2(8n^2+57n-7)=0

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Solution for 2(8n^2+57n-7)=0 equation:


Simplifying
2(8n2 + 57n + -7) = 0

Reorder the terms:
2(-7 + 57n + 8n2) = 0
(-7 * 2 + 57n * 2 + 8n2 * 2) = 0
(-14 + 114n + 16n2) = 0

Solving
-14 + 114n + 16n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-7 + 57n + 8n2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-7 + 57n + 8n2)' equal to zero and attempt to solve: Simplifying -7 + 57n + 8n2 = 0 Solving -7 + 57n + 8n2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -0.875 + 7.125n + n2 = 0 Move the constant term to the right: Add '0.875' to each side of the equation. -0.875 + 7.125n + 0.875 + n2 = 0 + 0.875 Reorder the terms: -0.875 + 0.875 + 7.125n + n2 = 0 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + 7.125n + n2 = 0 + 0.875 7.125n + n2 = 0 + 0.875 Combine like terms: 0 + 0.875 = 0.875 7.125n + n2 = 0.875 The n term is 7.125n. Take half its coefficient (3.5625). Square it (12.69140625) and add it to both sides. Add '12.69140625' to each side of the equation. 7.125n + 12.69140625 + n2 = 0.875 + 12.69140625 Reorder the terms: 12.69140625 + 7.125n + n2 = 0.875 + 12.69140625 Combine like terms: 0.875 + 12.69140625 = 13.56640625 12.69140625 + 7.125n + n2 = 13.56640625 Factor a perfect square on the left side: (n + 3.5625)(n + 3.5625) = 13.56640625 Calculate the square root of the right side: 3.683260275 Break this problem into two subproblems by setting (n + 3.5625) equal to 3.683260275 and -3.683260275.

Subproblem 1

n + 3.5625 = 3.683260275 Simplifying n + 3.5625 = 3.683260275 Reorder the terms: 3.5625 + n = 3.683260275 Solving 3.5625 + n = 3.683260275 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-3.5625' to each side of the equation. 3.5625 + -3.5625 + n = 3.683260275 + -3.5625 Combine like terms: 3.5625 + -3.5625 = 0.0000 0.0000 + n = 3.683260275 + -3.5625 n = 3.683260275 + -3.5625 Combine like terms: 3.683260275 + -3.5625 = 0.120760275 n = 0.120760275 Simplifying n = 0.120760275

Subproblem 2

n + 3.5625 = -3.683260275 Simplifying n + 3.5625 = -3.683260275 Reorder the terms: 3.5625 + n = -3.683260275 Solving 3.5625 + n = -3.683260275 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-3.5625' to each side of the equation. 3.5625 + -3.5625 + n = -3.683260275 + -3.5625 Combine like terms: 3.5625 + -3.5625 = 0.0000 0.0000 + n = -3.683260275 + -3.5625 n = -3.683260275 + -3.5625 Combine like terms: -3.683260275 + -3.5625 = -7.245760275 n = -7.245760275 Simplifying n = -7.245760275

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.120760275, -7.245760275}

Solution

n = {0.120760275, -7.245760275}

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